Adding and listing machine.



R. E. BBNNER..

ADDING AND LISTING MACHINE. l

APPLIoATIoN FILED un. 31. 190s.

Patented Jan. 9, 1912.

5 SHEETS-SHEET 1.

R. E. BENNER.

ADDING AND LISTING MACHINE.

APPLICATION rum) 1119.11.31, 190s.

Patented Jan. 9, 1912.

5 SHEETS-SHEET 2.

R. E. BENNBR. ADDING AND LISTING MACHINE.

APPLICATION FILED MAB.. 31, 1908.

1,013,923. Patented Jan. 9, 1912.

5 SHEETS-SHEET 3.

R. E. BBNNER. ADDING AND LISTING MACHINE.

APPLIOATION FILED MAR. s1. 190s.y

1,013,923. v V- Patented Jan-9,1912.

5 sums-SHEET 4.

. 3 'HU' L JY i0 J3 R. BBENNER.

ADDING AND LISTING MACHINE.

APPLIQATION FILED 11113.31, 1.908.

Patented Jan. 9, 1912.

5 SHEETS-SHEET 5.

UNITED STATES PATENT oEEIoE.

RUSSELL E. BENNER, OF DETROIT, MICHIGAN, ASSIGNOR TO BURROUGHS ADDINGMACHINE COMPANY, OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

ADDING AND LISTING MACHINE.

Specification of Letters Patent.

Patented Jan. 9, 1912.

Application mea March 31, 196s. serial No. 424,333.

To all 'whom it may concern:

VBe it known that I, RUSSELL E. BENNER,

a citizen of the United States, residing at or where it is desired todefinitely limit the length of a list for any reason, the operator willbe relieved of the necessity of closely watching the printing as itprogresses or counting the operations of the machine but .will beautomatically notified when the maximum number of items for a singlelist has been printed. In machines of this character it is customary toprovide mechanism which operates to automatically advance the paper stepby step as themachine is operated and it is further customary inmachines Wherela roller platen is employed to provide for discontinuingthe automatic advance of the aper when' such platen is moved fromprinting position.

In Patent No. 595,864, issued December 21, 1897, on the invention ofWilliam I-I. Pike, Jr., there is shown and described a printingattachment for an adding and listmg machineof the well-known Burroughstipe, this attachmentv comprising a laterally s ftable paper carriagesupporting a roller laten in a rocking frame. When said ame is swungforward the laten is brought to printing position and into frictional'engagement with one or more driving rollers on a shaft turned step bystep throughl ratchet-and-pawl mechanism, the

latter actuated bysuitable connections with set to provide for thevabove referred to have been in use quite extensively for a considerabletime in Burroughs adding and list-ing machines. In a more recent typethe method. of automatically advancing the paper step by step has beensomewhat modified by eliminating the friction drive and applying theratchet- 'and-pawl mechanism directly to the jour-` 'nal of therollerlplaten and instead of disfcontinuing the automatic vpaper feed byseparation of the roller platen from driving rollers it is accomplishedby disengaging the pawl from the ratchet -automatically by the act ofthrowing back the platen. In

either case `when the platen is thrown back it can be turned by hand ineither direction. In the Pike construction any backward turning of theplaten roller necessarily takes place when such roller is entirelydisconnected from the alarm mecha nism. Consequently the stop devices ofthe latter which serve to reestablish the normal condition under anydesired adjustment cannot be availed of to set a limit to backwardturning of the platen.

One feature of the present invention is the provision of stop deviceswhich may not only serve to restablish a normal condition of mechanismwhich measures the advance of the paper under different adjustments butalso serve to measure backward movement of the paper as is highlydesirable when several parallel vertical columns of amounts are to beprinted, each containing the same number of items. Thus having arrangedthe paper to receive the first item of a list-and having adjusted themeasuring devices so as to provide for the printing of a predeterminednumber of items, and such number of items having been printed, the papercan be turned backward without the operators having to watch the columnof amounts or items already printed or the top edge of the paper butsimply until the stop devices take effect when the paper will bepositioned for starting a new column. along the same horizontal line astheA first item of the column alreadxyI printed, it being of courseassumed that the paper is shifted laterall l Another feature of thepresent invention is the arrangement of the measuring mechanism so as toalways be in step so to speak, with the paper feed whether thepaper isin printing position or not and therefore whether the paper is beingadvanced automatically by operations of the machine or by hand while theautomatic `feed is discontinued. Thus if in running a column of figureson a sheet of limited length under an adjustment which provides fornotifying the operator when the end of the sheet has been reached, theoperator should for any reason after listing a number of items advancethe paper by hand to line space before continuing the listing of items,the measuring mechanism would be in operation both during the listing ofitems and during the spacing. Consequently,the ,operator would benotified when the end .of the sheet of paper had been' reached just thesame as though the listing of items had gone on continuously without anysuch spacmg as referred to. It will be obvious that this would not betrue if, when the paper was moved back from printing position for thepurpose of spacing, the measuring mechanism was disconnected as forinstance in a construction such as that shown in said Pike patent.

While the present invention as to th above-specified features may beconsidered as broad enough to embrace constructions providing merely forthe sounding of an alarm when the predetermined number of items havebeen listed, another feature of the invention relates to a differentmode of notifying the operator when the list is complete as by causingthe numbered keys `or other manipulative amount-determining orsetting-up devices to become locked.

'Thus having set the indexing or measuring devices to provide for thelisting of a cer` tain number of items, when that number of items hasbeen listed the depressible amount keys will no longer yield to lingerpressure and so the operator will be notified that the limit has beenreached and that the paper must be run back to the starting point be orefurther listing can be done. y

While, as above indicated,l the measuring mechanism can be' utilized byadjusting the paper at the starting point and adjusting an indexaccording to the number of items to be listed, the .present inventionprovides for otherwise utilizing this,r .mechanism which obviates thenecessit of consulting the index. Thus starting with the stop devices atnormal and advancing the paper by hand until the point is reached wherethe list should end, the indexing device need simply be broughtupagainst its own stop, the paper then run back and brought to printingposition and the machine opera roughs.

Under either mode of utilizing the meas-l uring mechanism thefnoticationto the operator will occur at the proper time and when the paper ismoved out of printing position and run back it will be stopped at theproper point to begin a new 11st and that new list can vbe startedwithout any readjustment of the measuring or indexing mechanism.

The invention further provides for conveniently restoring the measuringor indexing mechanism to normal when a dili'erent adjustment is desiredin preparation for a different length of list. Provision is also madefor conveniently disabling the measuring mechanism altogether when themachine is to be operated withoutlimit as to the length of list as forexample when listing amounts on a strip of paper drawn from a roll. p

The invention is here shown and described in detail as applied to amachine of the above-mentioned Burroughs type and reference may be hadfor an understandingy of the principles on which machines of this typeare constructed, to Patents Nos. 504,963 and 505,078, issued September12, l893, on the inventions of William S. Bur- However, it is to beunderstood that the invention is not necessarily limited to the form ofembodiment here shown which especially adapts it for use as anattachment to or improvement upon a machine of this Burroughs type, butthe principles of the present invention may be 'applied to adding andlisting or like machines of other types, the form of adaptation beingmodified to suit difierentconditions.

Of the accompanying drawings which form part ofvthis specification andillustrate one form of adaptation of the present invention as applied toa machine. of the Burroughs type, Figure 1 represents in right si'desectional elevation an adding and 11stingmachine of this type having theimprovements of the present invention applied thereto; Figs. 2 and 3 aredetail views, one being a right side elevation and the other a top planview of a manipulative device whereby the measuring mechanism may berendered operative. or inoperative; Fig. 4 represents 1n left sidesectional elevation the rear portion of the machine where the attachmentof the present invention is located, the said'manipulative device beingshown positioned to disable the measuring mechanism; Fig. 5 representsa. right side elevation of that -portion of the machine which comprisesthe laterally shiftable pa er. carriage and the automatic paper feed mecanism; Fig. 6 represents in rear elevation the parts which appear inFig. 4excepting those which lie within or extend into the inclosingcasing -of the machine, they being at the opposite side :off the1:nacl1i11e;

Fig. is a longitudinal vertical section of parts appearing at the upperright-hand portion of Fig. 6; Figs. 8 and 9 are crosssectionsrespectively on lines 8-8 and 9`9 of Fig. 7'; Fig. 10 is a cross-sectiontaken substantially. onthe line 10- 10 of Fig. 6

'with parts broken away to disclose'others l beyond; Fig. 11 is a viewsimilar to Fig. 10v

known on account of its extensive commer-l cial use and also by reasonof the issuance of the before-mentioned patents and many others it willnot be necessary to enter into a detailed description of the same andfor the purpose of a thorough understanding of the present invention itwill suiiice to refer only to s0 much of the Burroughs mecha-4 nism asintimately associated with the devices applied to the machine for thepurpose of carrying out the present invention. `The delpres'sible keys291 arranged in rows l and those of each row numbered from 1 to 9operate to thrust rearwardly the usual sliding detent strips 214 andspring-held Ipivot-- ed detents 228 engage in apertures of said stripsto hold the same in positions to which they are moved by the keys. Theusual key- `releasing bail is employed, the same comprising a cross-rod202 toact upon the detents 228 and side plates 219 securedto a rockshaft 207. The' bail is normally drawn rearward by a spring 208 andswung forwardly against the stress of such spring by the familiarwipe-pawl or cam plate 623 which takes effect at the close of themachines operation. When the bail is so rocked forward its cross-rod 202not only lifts the detents'A 228 but lalso acts against the rea-r endsof the strips 214. Therefore if the ,bail should be .locked in itsforward position no amount keys could be depressed. The presentinvention provides for so locking this bail. The depending arm of theright-hand side-piece 219 of. the said bail,

v'which arm carries the usual roll for coaction with the wipe-pawl 623,also carries a stud a which normally occupies the upper portion of asubstantially right-angled slot b in a link B jointed to the usual errorkey lever Eand normally abutting the central rock-shaft 600 of themachine. This link may thus serve the usual function of a connectionfrom the error key to the key-re leasing bail for effecting release oferroneously depressed keys. vIn the resent instance this link'serves anadditional func-- tion in that by elevatingits rear end when thekey-releasing bail is rocked` forward otherwise than by depression ofthe error key, the substantially vertical portion of the saidright-angled slot'b will be caused to eIlgage 'the stud a and thus lockthe bail against return movement and thereby prevent depression of theamount keys. The two branbhes of the slot are curved, one t6 accord withthe arc movement of the stud a Whenthe bail is oscillated with the linkin its lowered position and the other to accord with the arc movement ofthe link when it rises to lock the bail or lowers to release the same.This horizontally extending link B is jointed at its rear extremity to avertically-extending link C and the latter at its lower end is jointedto an arm D secured to t-he. right-hand end of a short rock-shaft B journaled in bearings on the back of the machine and which has secured toits opposite end a bifurcated arm B2 embracing" a bead f on a plate Fwhich extends longitudinally of and is secured to a rock shaft F inbearings on the laterally shiftable y paper carrlage 17. The left-handend` of this rock shaft F (Fig. 4) has secured to it a short arm F2,andaspring F-3 connects said arm with an upper portion of'said papercarriage. This spring tends to rock the plate F downward and thus liftthe arm 'D and the link B but is normally restrained from so doing bymechanism hereinafter described which measures the advance of the paperand counts the listed items. It will be seen that anoperative-connection is preserved between the above-specified partsl on4the laterally shifting carriage and the` baillocking parts in themachine proper by reason of the sliding connection between thebifurcated arm D2 and the elongated plate F.

4 ln order to provide for preventing a locking of the bail even thoughtheabovementioned spring F3 might be permitted to act so far as themeasuring or item-counting mechanism is concerned, (as when indefinitelylisting items on roll paper), a plate G, (Figs. 1, 4 and 12) isslidingly mounted in the machine, being slotted to embrace a cro-ssshaftk209 and also slotted to embrace a stud b on the link B. This plateis drawn upward by a spring g and when lin its uppermost position asshown in Fig. 12 said `stud b is at the bottom of the yslot and the latetherefore doesnot interfere with a ris of the Alink lB to lock thekey-releasing bail. However, when thesaid plateis depressed so thatl thestud-b is in the upper end of the slot it will be obvious that said linkcannot chine casing and havin on its-inner end a l act to depress thelat-ter.

substantially semi-circu ar head Gr'1L overlying the upper edge of theplate G. When the said knob is turned to a position where theinscription Oif is uppermost said headj occupies such a position as thatshown in Fig. 4: where its rounded perl hery is in` cont-act with'theupper edge o said plate holding the latter depressed. The said head isrounded oli' so as to operate with an easy camming effect upon the edgeof the plate and it will be obvious that in turning it'will 1n order toprevent accidental displacement of the head G* it is formed with adetaining notch vga adapted to be engaged by the nose g4 ofa catch levergl5 pivoted to a forward extension of the plate G and connected by aspring g6 with the rear portion of the plate. It will be seen that asthe head Gr4 is turned it will displace said catch lever and when thehead is turned to a position where the nose of said lever may enter thenotch g3 there will be yielding resistance to displacement of the saidhead. When the knob G is' turned to a positionv where the inscription Onis uppermost the flat portion of the head G* lies in contact with theupper edge of the plate G so that the latter may occupy its upperposition and present no obstruction to rise of the link B. Such acondition is represented in Fig. 12 and in' Fig. 13 the link B isillustrated as having swung upward and locked the bail in its forwardposition. In Figs. 1 and 4: the plate G is illustrated in its loweredposition, the knob being turned to the oil' position and the link Btherefore obstructed sothat the bail may swing back and forthindenitely.

Passing now to the paper-carrying portion of the machine the referencenumeral 17* designates the usual roller platen which is journaled in aroking frame on the carriage 17 said frame comprisin side-pieces 17?secured to a rock shaft 17. hand end of the roller platen journal thereis secured a ratchet wheel 17 d (Fig. 5) and there is loosely mountedupon said journal an arm 17 carrying a pawl 17t spring-drawn Vintoengagement with said ratchet. A link '17E is connected to saidpawl-carrying arm and slotted at its lower end for engagement with astud on an arm 17l1 secured to a rock shaft 17, said rock shaft carryinga bail 17j which has sliding'en agement with jaws of a vertical slidebar 1 on the back of the machine.

-lever is of course carried with it.

Said slide bar is engaged by a lever 17m (Fig. l) which is vibrated by acam 17n 0scillating in ever operation of the machine. The verticalreclprocations of the slide bar 17k thus produced cause up sand downvibrations of the bail 17j and the arm 17h and this movement istransmitted to the pawl 17t to first retract the same and then cause itto turn the roller platen.

lAn abutment piece 17 (Fig. 5) may beengaged with one or another of aseries of sockets in the link 17 to vary the amount of movement impartedto the roller platen, it being understood that the stud of the arm 17hmoves said link upward by actin against said abutment piece and downwarby acting against the lower end of the slot v of the link.

The throwing back of the platen by rocking its supporting frame aboutthe axis of the rock shaft 17 as a center, has the eil'ect of disenaging the pawl 17 f from the ratchet Wheel 17d. The constructionemployed for such purpose is of the following description: There ispivoted to the right-hand side-piece 17b of the roller platen cradle orrocking frame at the point 171 a lever having a curvedupwardly-projecting arm 17 1 extending in front of a stud 17r on thepawl 17t which is drawn into engagement with the ratchet wheel 17d by aspring 17 E. The lever has a downwardly-extending arm 17t bearingagainst a lateral projection 17 of the carriage 17 and formed with a camportion normally just below said lateral projection. When the platen isthrown back the said The cam portion of the lever coacting with thelateral projection on the carriage causes the lever to be rockedsufficiently to disengage the pawl from the ratchet wheel by the actionof the curved upper arm 17 of said lever against the awl-stud 17 asillustrated in dotted lines 1n Fig. 5.

It will be seen that when the platen is forward or in printing positionthe engagement of the pawl with the ratchet will prevent backwardturning of the platen but when the platen is thrown back and the pawldisengaged from the ratchet in the manner already described the platenmay bel rotated backward by means of the usual knob on the end of theplaten journal. The paper is as usual introduced from the rear on theunderside of the platen between the same and suitable pressure rollersand the turning of-the platen in .eitherdirection carries the paper withit.

Coming now to the mechanism for meas- `uring the paper feeding andretracting movements of the platen there is secured to the left-hand endof the platen journal a small gear wheel H (Fig. 4) which normallymeshes with a larger gear wheel H' soupes gear wheel H into and out ofengagement with the small gear wheel H. The large r wheel is normallyheld in enga ement with the small gear wheel both byl e preponderanceofweight on the right-hand side arm H= in its forward position wit of thecenter h as the 'parts are seen in Fig. 4 and by /the action of a spiralspring It which connects the' upper part of the arm or plate H with theower rearwardlyperojectin endof a cam lever H* of double ll craoutlinepivoted at its. upper angle to the upper extremity of said plateor arm H2 as shown at h'. In' the forward substantially vertical rtion'of this lever there is formed an angu ar' slot h* which engages a screwstud h on the platen rock frame or cradle. The sprin h tends to drawthis slotted portion of t e'lever downward and en A the u per end of theslot with said stud which asv the' effect of locking the u the gears inmesh. The .lever H', however, has a linger piece H to be pressed backwhen the gears are to be disengaged. The first effect of rearward fingerressure 4on this lever is to rock the same on its ivot causing the upperbranch of the slot to traverse the stud h, such portion of the slotbeing concentric with the lever. Continued pressure on the lever Awillthen rock the arm Hz back both by reason of the vfact that theabove-mentioned travel of the upper branch of the slot has unlocked saidarm and the lfinger pressure can therefore 'take leiect tov rock thegear-carrying arm 'and also by reason of a cammin effect of the lowerbranch of the slot agalnst the studl h5. This lower branch o f the slotextends at an angle to the upper portion and the rocking of the lever H3after this lower branch of the slot has reached the stud h5 necessarilycauses a displacement of the arm or plate H2 as the slot continues totraverse? the stud. The engagement between the stud h? and the rear edgeof the lower branchof the slot will obviously have the effect Vofcamming the arm or plate H2 rearwardly When the `lever H3 is relieved ofinger pressure the vspring h2 causes the forward edge'oflthe H" againstthe endof a ass-by pawl H* which is pivotally mounte on the plate Hz andheld forward by a spring ha as illus- -trated in Fi 4.; In forwardrotation the ar H w' not be stop ed by this pawl ause the stud hf may ten wipe over the pawl, the spring l1.8 yielding, but as soomas the studhas passed this sprin restores the pawl to position for stopping thereverse rotation of the gear. This gear H' is emplo ed for advancin ameasuring device a lstance predetermlned according to the number ofitems to vbe listed in one column, and the size. of the gear is such asto provide for the lmaximum number of items which would be listed whenthere would be any. occasion for scttin a limit. Therefore so far as oeration o -the machine under Vany such limitation might be concernedthere need be ,no such provisions as above described for permitting thegear to turn beyond a single rotation, i. e. the abutment iece for thestud il? need not be ofl the passy variety. However, as beforeexplained, the application of the present invention to a machine of thecharacter referred to at -the outset of this specification provides forthe ordinary use of the machine for indefinitely listing items on astrip of paper drawn from a roll and this would call for indefiniteVturning of the said gear wheel H. which it will have been seen 1srovided for by the above-described passy pawl construction.

When the machine is being operated under an adjustment for-limiting thenumber of itemsincluded in a single column it is highly desirable thatthe backward turning of the platen shall bring the paper to the samestarting point each time and it will bel obvious that the stop devicesabove described will serve this purpose inasmuch as the gear H willalways be stopped at the same point by the abutment ofthe stud h"against the pass-by pawl H4, and inasmuch as said gear turns with theplaten. These stop devices also come into play when the gear wheel H isdisengaged from the gear wheel H after limited columns of items havebeen printed and it is desired to change the adjustment. The gear wheelH (Fig. 7) carries on its inner side a spring barrel Hi and a volutespring H's within said barrel has frictional engagement at its outer endwith the same and at its inner end is secured to the sleeve h throughthe medium of a collar h secured to said sleeve 'vancing movement of theplaten being in.

opposition to the spring so as to wind up vthe latter. y Of course the.action of the 20 on the arm F2. When the finger is upon the spring inreturning theI gear is limited by the abutment of the stud z.T againstthe passby pawl H. 4

Referring now to the indexing devices by which the number of items to belisted may be determined a shaft I extends through the sleeve it whichsupplies a bearing for the shaft and on the inner end of the latterthere is secured a disk I which is formed in its periphery with a notch(dotted lines Fig. 4 and full lines Figs. l0 and 1 1), said notch beingof substantially segmental outline abrupt at one end and beveled orsloped at the other end. A finger I2 pivoted at on the carriage 17 isformed at its upper end with a lateral angular lip 2 overlying theperiphery of the notched disk. This finger has. an extension 3 forwardof its pivot, which extension has-jointed to it a link 4 slotted at itslower end to embrace a stud f unbroken periphery of the disk said linkis lowered, bringing the upper end of its slot upon the stud f. Upwardmovement of the arm F2 by the spring F 2, which it will be rememberedhas the effectl of locking the keyreleasing bail and preventingdepression of the keys, cannot take place so long as rearward movementof the finger I2 is obstructed by the notched disk but when the notch ofthe disk comes opposite the lateral lip 2 of said. finger obstruction torearward moved ment of the latter is no longer presented by the disk andso the spring F3 is not thereby prevented from acting.

There is secured to the shaft I outwardly beyond the gearH (Figs. 7 and9) a radial arm J bifurcated at its outer end and there is slidinglymounted upon the shaft outwardly beyond this arm a disk J having a study' occupying the bifurcation of -said radial arm so that the disk J andthe shaft I will always be rotatively engaged though said disk may bemoved longitudinally of the shaft. The disk is formed with a knurledknob J 2 by which to manipulate it, the said knobbeing in the nature ofa hub surrounding the shaft. It is recessed to accommodate la spiralspring j which is confined by a screw f2 entering the shaft I (Fig. 7).Said spring serves to thrust the disk inwardly against the outer side ofthe gear H. 'Ihe disk has a peripheral fiange J 3 to bear against saidgear and this fiange is graduated and suitably inscribed to correspondwith the vfeed movements of the platen. The gear H has a radial mark j*(FigA) with which any one of the gradual@ tions on the flange J 3 may bemade to register, thus determining how far the paper may be advancedbefore the`amount keys will be locked. Of course when thefindexin disk-has been adjusted to register the esired `graduation mark with the markon the gear wheel it should be so engaged with the gearl Apin jT by aspring js (Fig. 4).

wheel as to rotate as a part thereof. To thisV end there is secured tothedisk J (Figjf) a dog js which preferably is in the forln'of an'angular piece secured to the inner side of the disk andL projectingthrough a notch' 7'0 in the flange and formed at its outer extremitywith a number of laterally projecting t teeth to engage the teeth of thegear wheel, being withdrawn laterally therefrom when the disk is movedoutwardly on the shaft and of course thrust laterally into the teeth ofthe gear when the disk is released and the spring 7" moves the diskagainst the side of the gear.' Turning of the disk back. wardly whenwithdrawn from engagement 804 with the gear wheel is limited bythe'abutment of said dog against a pass-by pawl J 5 mounted on a stud jcarried byl a forward projection of the rocking plate 4or arm H2. Whenthe disk is interlocked with the gear wheel saidpass-by pawl doesnotstand in t-he path of the dog but when the disk is withdrawn fromengagement with the gear the dog will encounter the pass-.by pawl whenthe disk is turned backward. This pawl will yield under forward turningof i the disk, being h'eld against a suitable stop It shouldV benoted'that the gear wheel H is wider than the platen gear wheel andVthat the 95. teeth of the dog can only project half-way across the teethof the gear wheel H' (Fig. 7). Consequently, the intermeshing of thegear wheels is not affected by the engage, ment of the dog with theteeth of the larger 10o wheel. j j

As the notched disk I is secured to the same shaft with which theflanged disk J is always rotatively engaged it follows that the relationbetween the notch of the disk I and the line-spacing. scale made up ofgraduations on the flange J 2 of the disk J never varies. Consequently,the setting of the fianged disk at different positions will vary thepoint at which the notch of the i disk I will arrive opposite the lip ofthe l finger I2. The normal position of the measuring gear H, being theposition to which it is brought by .its spring Hf as before explained,is such that the indexing mark j? is at the upper side of the wheelwhere it can be conveniently-viewed when adjusting the indexing disk.'It will be obvious that the adjustment of the latter with relation tosaid mark will determine the point at which the notch of the disk I willpermit thelocking of the amount keys to take place. Thus if the columnof items is to be limited to ten the indexing disk will be disengagedfrom the gear wheel and 125 turned until the graduation mark oppositethe inscription 10 registers with the mark y'4L (as shown in Fig'. 10)and said disk then rengagedwith the, gear. The latter being A at normalwhen the work begins the amount keys will be locked after the printingof the tenth item (as indicated in Fig. 11 assuming of course that theautomatic inespacin mechanism is adjusted to correspond with theaduations on the index disk. These gra uations will referably be made tocorrespond with sing e spacing, e., advance of the platen a distance ofa single tooth of the ratchet wheel. It will be noted that in Fig. 5 thetap et-piece 17 is posi- ,ing and sto mechanisms of t e resent in'--vention nee not necessarily be ollowed in 'order to secure the desiredcolumn regulation.

tioned to rovide for t is single spacing.

It will seen that with the above construction applied to a machine ofthe charg acter indicated it will only be necessary when the length ofcolumns is to be limited on account f limited length of paper, for examle, to start with the measuring ar wheelpat normal and set the indexinisk according to the number of items to e included in one column, thenproceeding with the listing in the ordinary way. The lockg ing of theamount keys upon the printing 'as far as it will o.

of the last item notifies t e operator that the limit has been reached.Assumin that columns of items are to be printed slde by side as willordinarily be the case when there is occasion to use devices such asthose provided by the present invention, the operator ,-will then shiftthe carriage to the left,'throw back the platen and then rotate itV.backward The stop devicesbefore described limit such backward rotationto the point where the first column of items started. If the work beingdone includes continuous addition of items or amounts then it` willusually be desirable to print a sub-total at the bottom of the firstcolumn which can be done after the amount keys have become locked. Thelocking of such keys does not aifect .the sub-total or total keys orprevent movement of the operating l handle and parts connectedtherewith. Consequently, when the amount keys become locked, indicatingcompletion-of the column, the usual spacing stroke can thereupon` betaken and then the sub-total or total key depressed and the handle againoperated to print a total or sub-total. Wherefa total is to be carriedto the next column it is preferable, when the platen has been turnedbackward as above described, to first again print the sub-total beforeproceeding with'the listing. This sub-total will appear on the samehorizontal line asl the irst item of the column already printed, or itmay be opposite the imprint of a specialcharacteredenoting a clearcondition of the machine before the starting of the work. Then followingitems.

will appear opposite items of the first column respectively down to thelast added one" thereof when the keys again become locked.

line. Of course the total ,pressing back the lever described can becontinued for as many columns as desired and all sub-totals at the to ofcolumns will be in the same horizonta line and all sub-totals at thefoot of columns will also bel in the same horizontal of the last columnwill or inarily be a grand ,total and not a sub-total but it would be inHaving caused the measuring ear =to assume normal position, which as beore explained can be done at anIyI time by simply and having thrown backthe platen, the latter may be advanced by hand until the paper isadvanced to the point where the columns `should end. Then the indexingdisk may be drawn out disengaging it from the gear and turned backwardas far as it will go, t'. eyuntil the dog y" comes up against they.pass-by pawl'J (Fig. 4)'. lThis brings the notch 'i of the disk Iopposite the lip 2 of the finger I2 as shown'in `dotted lines in Fig. 4.The gear.y H has, however, been turned by the turnin forward of theplaten so that the stop stu h" is not at normal as rinted at the foot inFi 4 but advanced a distance corresponding with the advance of theplaten. The latter will now be turned backward as far as it will go, i.e. until the said stop stud It comes up against the pass-by pawl H4.This of course means that the platenl is turned backward exactlyv thesame distance it had previously been turned forward. The indexing diskbeing at this time interlocked with the measuring gear, (this havingtaken place upon the release of the disk after its eing turned back asabove described) the backward turning of the gears carries the notch z'away from the lip z2 of the linger I2 a distance corresponding With theextent to which the platen has been turned backward. Consequently, whenthe listing thereupon ensuesvthe notch will again be brought oppositethe lip of the finger when the platen has advanced tothe same extent'itWas pre- 115 viously turned by hand and the locking of the amount keyswilltherefore take place at the point previously determined upon whenthe platen was turned forward by hand.V Further columnar printing willbe carried on the lsame as already described in connection with theother method of using the measuring mechanism.

While as before stated backward turning of the index disk is limited bythe abutment of the dog against the pass-by pawl J 5, the latter' willlyield to the turning ofthe disk in the opposite direction and so ifiorexample the index disk is to be shifted rom'an adjustment for twentyitems to an adjustworked and of course when the handle isv pulled withthe platen in printing position the line-spacing will take effectwhether amount keys are depressed or not. notch in the disk I issufliciently long to -alloW for several strokes of the operating handleafter the amount keys have been locked, thus providing for the spacingand total-printing above referred to, without affecting the lockingconnections. Of course it is to be assumedthat the operator, having runa column of items and printed a total at the foot of the same, will haveno occasion to further operate the handle of the machine until the paperhas been run back for the starting of a new column. But if the handle ispulled more times than the length of the notch in the disk I providesfor no disastrous results will ensue for as before eX- plained one edge,or side of said notch is beveled andthe lip of the finger I2 is angularso that such excessive operation of the handle would simply result inthe linger being cammed out of the notch and the keyreleasing bailunlocked. This might be availed of where for some reason a certaingroups of items'. i-n the same column. Thus themeasuring mechanism mightbe set for the printing of a predetermined number of items and theninstead of turning the platen 40 backward and shifting the papercarriage when the amount keys became locked, the operating handle couldbe pulled until `the amount keys became unlocked and the listying couldthen be resumed. However, ordinarily when itemsare to be listed in acol- `umn .of unlimited length the amount key .locking mechanism wouldbe disabled altogether by theuse of the knob G.

It will be noted that when the platen is thrown back the finger I2 willbe rocked rearwardf by the platen journal and the link I4 thus elevatedso that it no longer obstructs the arm. F2. Hence with theplaten 4thrownback the amount keys will become locked as a result of a single strokeof the operating handle. But upon bringing the platen forward again thekeys would be unlocked by reason of the action of the link 4 upon thestud f, unless of course the notch of the disk 3. I wasopposite the lipof the finger I2 in which case the amount keys should of course remainlocked. This locking of the amount keys as a result of throwing back theplaten is infact a desirable feature inasmuch as it 'p65 preventsrepeated operation of the machine The v amount of spacing was desiredbetween 'in -such manner as to project the type rear- .per feedingdevices, an'fl means controlled by the latter for automatically lockingthe setting-up devices after a predetermined number of successiveoperations of the feeding devices with provisions for disabling saidmeans at will.

3. In a machine of the character de-I scribed, the combination ofmanipulatively depressible amount keys, paper feeding devices, and meanscontrolled by the latter for automatically locking the keys againstmanipulative depression after a predetermined number of successiveoperations of the feeding devices.

4. In a machine of the character described, the .combination ofdepressible amount keys, paper feeding devices, and means controlledbythe latter for automatically locking the keys against depression aftera predetermined number of successive operations of the feeding deviceswith provisions for disabling said means at will.V

5. In a machine of the .character described, the combination ofdepressible amount keys, detents for holding the keys depressed, meansfor displacing the detents to release the keys, said means capable ofblocking further depression of keys, paper feeding devices, and meanscontrolled thereby for holding said detent-displacing means inkey-blocking position. 4 l

6. In a machine of the character described, the combination' ofldepressible amount keys, detents for holding the keys depressed, meansfor displacing the detents to release the keys, 'said means capable ofblocking further depression of keys paper feeding devices, and meanscontrolle there- 1 by for holding said detent-displacing means inkey-blocking position with provisions ,for disabling said last-mentionedmeans at will.

Z. -In a'` machine of the character described, the combination ofdepressible keys, detent strips moved thereby, detents for engaging saidstrips, a spring-retracted bail to displace the detents and abut thestri s, paper feeding devices and means control ed thereby to lock saidbail against retraction.

8. In a machine of the character described,

the combination of depressible keys, detent 139 strips moved thereby,detents for engaging said strips, a spring-retracted bail to dis; placethe detents and abut the strips, paper feeding devices, and meanscontrolled thereby to lock said bail against retraction Witi provisionsfor disabling said means at wil 9. In a machine of the characterdescribed, the combination of depressible keys, detent strips movedthereby, detents for engaging said strips, a spring-retracted bail todisplace the detents and abut the strips, said bail having a stud, apivoted armangularly slotted to engage said stud, the latter norv vmally traversing one branch of the slot which permits the bail' toadvance and retractbut the other branch of the slot adapted to engagethe stud when the ybail is advanced and -prevent its retraction; meanstending to mally traversing one branch of the slot which permits thebail to advance and retract but the other branch of the slot adapted toengage the stud when the bail is advanced and prevent its retraction;`paper feeding `devices and means controlled thereg ispring-held slidepiece engaging said arm;

by for in turn controlling saidz ivoted arm.

10. In a 'machine of the c aacter de scribed, the combination ofdepressible keys, detent strips moved thereby, detents for en gagingsaid strips, a spring-retracted bail to displace the detents and abutthe strips, said bail having a stud, a pivoted arm angularly slotted toengage said stud, the latter normally traversing one branch of the slotwhich permits the bail to advance and retract but the other branch ofthe slot adapted to engage the stud when the bail is advanced andlprevent its retraction; paper feeding devices and means controlledthere- 1 with provisions for disabling said means at by for in turncontrolling said pivoted arm will.

11. In a machine of the character' described, the combination ofdepressible keys, detent strips moved thereby, detents for engaging saidstrips, a spring-retracted bail to displace the detents and abut thestrips, said bail having a stud, a pivoted arm angularly slotted toengage sald stud, the latter normally traversing one branch of the slotwhich permits the bail to advance and retract but the other branch ofthe slot ada-'pted to engage the stud when the bail is advanced andprevent its retraction; means tending to shift said arm to locking tion;and paper feeding devices contr said means.

12. In a machine of the character described, the combination ofdepress'ible keys,

detent strips moved thereby, detents for engaging said strips, aspring-retracted bail Ato displace the detents and abut the4 strips,

said bail having a stud, a ivotedarm angularlyvslotted to engage saldstud, the latter normally traversing one branch of the slot whichpermits the bail to advance and retract but the other branch of the slotadapted to engage the stud when the bail is advanced and prevent itsretraction; means tending to shift sai-d arm to locking posishift saidarm to locking position; a slotted and a finger piece for moving saidslide piece against its spring and thus preventing the Ashlfting of thearm notwithstanding permitted by the feeding devices.

14. In a machine of the character described, the combinationgofdepressible keys,

.detent strips moved thereby, detents for engaging said strips, aspring-retracted bail to displace the detents and abut the strips, saidbail fhaving a stud, a ivoted arm angularly slotted to engage said)stud, the latter normally traversing one branch of theI slot iwhichpermits the bail to advance and re- ;tract but the other branch ofstheslot adapted to engage the stud when thebaiI is advanced and prevent itsretraction; means -tending to shift said arm to locln'ng posit'ion; aslotted spring-held; slide piece engaging said arm and4 carrying aspring-held catch; and an on-and-o knob carryin Va cam-piece engagingsaid slide and notc ed for engagement with the said catch.

15.A In a. machine of the character described, the combination of deressible keys, detent stri s moved thereby, etents for engaging saidstrips, a spring-retracted bail to displace the detents and abut thestrips, said bail having a stud, a ivoted arm angularly slotted toengagesai stud, the latter normally traversing one branch of the slot whichpermits the bail to advance'and retract but the other branch of theslot. adapted to engage the stud when the bailis advanced and preventits retraction; means tending to shift said arm to locking position;paper feeding devices; a notched disk moved thereby; and a memberengaging the disk and the aforesaid means tending to shift thebail-locking arm.

16. In' a machme of the character described, the combination ofdepresslble k s, detent strips moved thereby, detentsgir engaging saidstrips, .a springretracted bail 'to displace the detents and abut thestrips,v

actuated link-andflever connectionstending said bail having a stud, aivoted arm angularly slotted to engage sa1d stud, the latter normallytrayersing one branch of the slot which permits the bail to ladvance andretract but the other branch of the slot adapted. to engage the studwhen the bail is advanced and prevent its retraction; springto shiftsaidarm to lockingvposition; paper feeding devices; a notched diskv movedthereby; a pivoted vfinger engaging. the eriphery ofl said disk; andconnections etween said finger and the said link-andlevr 'connectionsfor restraining the latter except when the finger is opposite the notchin the disk.

17. In a machine of the character described, the combinationof`depressible ke s, detent strips moved thereby, detents or engagingsaid strips, a vspring-retracted vbail to displace the detents and abutthe strips,

- said bail having a stud, a pivoted arm angumoved thereby and variouslyadjustable with relation thereto; anda member engaging said diskand theaforesaid means tending to shift the bail-locking arm. Y

18. In a' machine of the character described, the combination ofdepressible keys, detent strips moved thereby, detentsfor engaging sa1dstrips, a spring-retracted bail to displace the detents and abutthestrips,

said bail having a stud, a pivoted arm angu.

larly slotted to engage said stud,the latter normally traversing onebranch of the slot which permits the bail to advance and retract but theother branch of the slot'adapted to engage the stud .when the bail isadt vanced and prevent its retractionl; means tending to shift said armto loekingposition; paper feeding devices lincluding aturning therewith,-a

roller platen, gearing .d 1 e d ysai gear1ng,'11

notched disk moved member engaging said disky and the aforesaid meanstending to.shiftthe' baillocking arm. I v

i9. In a' machine of thev character descrlbed, the combination of deressible keys, detentlstrips moved thereby, detents forengaging saldstrips, a spring-retracted bail to displace the detents and abut'thestrips,Y said bail having a stud, a pivoted arm angularly slotted toengage saxd stud, vthe latter normally traversingone branch of the slotscribed, the combination of de ressible keys,y

which permits the bail to advance andrei tract but the other branch ofthe slot adapt:

ed to enga' e the stud whenthe bailisad` vanced an' prevent itsretractionyineans controlled'v by the latter for automaticallyv devicesafter a relocking the setting-u successive operations determined numbero of the feeding devices.

l2l. In `a machine 'of the character de-i scribed, the combination ofdepressiblcl amount keys, a laterally shiftable paper cart riage, paperfeeding devices thereon, and

means controlled by the latter for automatically locking the keysagainst depression i after apredetermined number of successivehoperations of the feeding devices.

22. Ina machine of the character de scribed, the combination ofdepressible :amount keys, detents for holding thekeys depressed, meansfor displacing the detents -to release the keys, said means capable ofblockin further depression of-keys, a laterally s iftable papercarriage, paper feed- 'ing devices thereon, and means controlled by saidfeeding devices for holding said detent-displacing means in key-blockingposition.

23. In a machine of the character described, the combination ofdepressible keys, detent strips moved thereby, detents for engaging saldstrips, a spring-retracted bail to displace the detents and abut thestrips, a laterally shiftable paper carriage, paper feeding devicesthereon, and means controlled by said feeding devices to lock said bailagainst retraction.

24. In a machine of the character described, the combination ofdepressible keys,` -detentV strips moved'thereby, detents for engagingsaid strips, a spring-retracted bail -to displace the detents and abutthe strips,

said bail having a stud, a pivoted arm angu- 'larly' slotted'to engagesaid stud, the latter 'normally traversing one branch .of the slot whichrmits the bail tov advance and revtending to shiftl said arm to lockingposii tractA but the other branch of the slot adapted to engage the`stud when the bail is advanced and prevent its retraction; alaterallydetentstrips moved thereby, etents for engagmg said strips, aspring-retracted bail to displace the detents and abut the strips,

said bail having a stud, a pivoted arm angularly slotted to engage saidstud, the latter normally traversing one branch of the slot which`permits the bail to advance-and retract but the other branch of theslot adapted to engage the studrwhen the bail is advanced and preventits retraction; means tending t-o shift said arm to locking position; alaterall shiftablepaper carriage,- and paper feeding devices 4thereoncontrolling said means.

26. In a machine of thecharacter described, the combination ofdepressible keys, detent strips moved thereby, detents for engaging saidstrips, a spring-retracted bail to displace the detents and abut thestrips,

said bail having a stud, a pivoted arm angularly slotted to engage saidstud, the latter normally traversing one branch of the slot whichpermits the bail to advance and re- ,tract but the other branch of theslot adapted to engage the stud when the bail is advanced and preventits retraction; means tending to shift said arm to locking position; alaterally shiftable paper carriage; paper feeding devices thereon; anotched disk moved by said feeding devices; and a member engaging thedisk and the aforesaid means tending to shift the bail-locking arm.

27. In a machine of the character described, the combination ofdepressible keys, detent strips moved thereby, detents for engaging saidstrips, a spring-retracted bail to displace the detents and abut thestrips, said bail having a stud, a pivoted arm angularly slotted toengage said stud, the latter normally traversing one branch of the slotwhich permits the bail to advance and retract but the other branch ofthe slot adapted to engage the stud when the bail is advanced andprevent its retraction; spring-actuated link-and-lever connectionstending to shift said arm to locking position; a laterally shiftablepaper carriage; paper feedingl devices thereon; a notched disk moved bysaid feeding devices; a pivoted finger engaging the periphery of saiddisk; and connections between said finger and the said link-andleverconnections for restraining'the latter except when the finger isopposite the notch in the disk.

28. In a machine of the character described, the combination ofdepressible keys, detent strips moved thereby, detents for engaging saidstrips, a spring-retracted bail to displace the detents and abut thestrips, said bail having a stud, a pivoted arm angularly slotted toengage said stud, the latter normally traversing one branch of the slotwhich permits the bail to advance and retract but the other branch ofthe slot adapted to engage the stud when the bail is advanced andprevent its retraction; a link coupled to said arm, a lever coupled tosaid link and bifurcated at the opposite end, an

elongated rocking member slidiiigly sock-I eted in said bifurcatedlever-end, a laterally shiftable paper carriage, paper feeding devicesthereon, a notched disk moved by said feeding devices, a pivoted fingerengaging said disk, and a-link connecting said finger with t-heelongated rocking member.

29. In a machine of the character descrlbed, the combination with apaper feeding roller, means for advancing the same step by step andmeans for disablin saidl roller-advancing means to'permit bac wardrotation of the roller; of a back stop for uniformly limiting suchbackward rotation, and a device adapted to turn with the roller butadjustable relatively thereto for varif ously measuring the advancethereof.

30. In a machine of lthe character de1 scribed, the combination with apaper-carrying frame movable into and out of position for presenting thepaper to be printed upon, a paper feeding roller mounted in said frame,and means for advancing said roller step by ,step with provisions fordisabling said means by movement of said frame out of printing positionto permit backward turning of the roller; of a back stop for unir,formly limiting such backward rotation, and a device adapted to turnwith the roller but adjustable relatively thereto for variouslymeasuring the advance thereof.

- 31. In a machine of the character described, the combination of apaper feeding roller having a gear, a second gear meshing with thelatter, a spring applied to said second gear to resist its turning byadvance of said roller, a member adapted to turn with said second gearand adjustable relatively thereto, means for advancing the paperfeeding'roller step by step, means controlled by` said member toslgnalize the advance of the feed roller a predetermined extent, meansfor disabling the roller-advancing means while the gears remain in mesh,and a stop to limit the turning of the second gear by its spring.

32. In a machine of the character described, the combination of a paperfeeding roller having a gear, a second gear movable into and out ofengagement with the latter, a spring applied to said second gear to.resist its turning lby advance of said roller, a member adapted to turnwith said second gear and adjustable relatively thereto, means foradvancing the feed roller step'by step, means controlled by said memberto signalize the advance' of the feed roller a predetermined extent,means for disabling the roller-advancing means while the gears remaininmesh, and a stop to limit the turning of the second gear by itsspring.

33. In a machine of the character described, the combination. with apapercarrying frame movable into and out of position forpresenting thepaper to be printed upon, a paper feeding roller mounted in rying framemovable into and out of said frame and havin a gear, and means foradvancing said rol er v step by step with provisions for disabling saldmeans by move ment of said frame out of printing position to permitbackward turning of the roller; of a second gear meshing with that onthe paper-feeding roller and mounted o n the paper-carrying framehaspring applied to said second gear to resist its turning by advance ofthe roller, a member adapted to turn with said second gear andadjustable relatively thereto, means controlled by said member tosignalize advance of the roller .a predetermined extent, and a stop t olimit turnin of the second gear by its spring.

34. scribed the combination with a paper-cartion for presenting thepaper to be printed upon, a paper feeding roller mounted in said frameand having Aa gear, and means for advancing said roller step by stepwith provisions for disabling said means by'inoyement of said frame outof printing position to permit backward turning of the roller; of asecond gear mounted on the paper-carrying frame 4but movable intov andout of enagement with the gear on the paper-feeding roller, a springapplied to said second gear to resist its turning by advance of theroller, a member adapted to turn with said second gear and adjustablerelatively thereto, means controlled by said member to si nalize advanceof the roller a predetermined extent, and a stop .to limit turning ofthe second gear by its spring.

35. In a machine of the character described, 4the combination of apaper-feeding roller, means for advancing the same step by step, adevice adapted to turn with said roller and adjustable to variouslymeasure the advance thereof, and a stop to limit the independentbackward turning of saidv device.

36.' In a machine of the character de.

scribed, the combination with a paper-feeding roller, means foradvancing the same step by step and means for disabling saidroller-advancing means to permit bac ward rotation of the roller; of aback stop for uniformly limiting such backward rotation, a deviceadapted to turn with the roller but adjustable relatively thereto `forvariously measuring the advance thereof, and a stop to limit backwardturning of said device.

37. In a machine of the character described, the combination with apaper-carrying frame movable into and out of position for presenting thepaper to be printed upon, a paper feeding roller mounted in said frame,and means for advancing said roller step by step with provisions fordisabling said means by movement of said frame out n a machine of thecharacter de` of printing position to permit backward turning of theroller; of a back stop for uniformly limiting such backward rotation, adevice adapted to turn with the roller but adjustable .relativelythereto for variously measuring the vadvance thereof, and a stop tolimit backward turning of said device.

38. In a machine of the character described, the combination of a paperfeeding roller having a gear, a second gear meshing with the latter, aspring applied to said second gear to resist its turning by advance ofsaid roller, a member adapted to turn with said second gear andadjustable relatively thereto, means for advancing the feed roller stepby step, means controlled by said member to signalize the advance of thefeed roller a predetermined extent, means for disabling theroller-advancing means, a stop to limit the turning of the second gearby its spring, and a stop to limit backward turning of said member.

39. In a machine `of the character described, the combination of a paperfeeding roller having a gear, a second gear movable into and out ofengagement with the latter, a spring applied to said second gear toresist its turning by advance of said roller, a member adapted to turnwith said second gear and adjustable relatively thereto, means .foradvancing the feed roller step by step, means controlled by said memberto signalize the advance of the feed roller a predetermined extent,means for disabling the roller-advancing means, a stop to limit theturning of the second gear by its spring, and a stop to limit backwardturning of said member.

40. In a machine of the character described, the combination with apaper-carrying frame movable into and out of position for presenting thepaper to be printed upon, a paper feeding roller mounted in -said frameand having a gear, and means for advancing said roller step by step withprovisions for disabling said means by movement of said frame out ofprinting position to permit backward turning ofthe roller; of a secondgear meshing with that on the paper-feeding roller, a spring applied tosaid second gear to resist its turning by advance of the roller, atiming member adapted to turn with said second gear and adjustablerelatively thereto, means controlled by said timing member to signalizeadvance of the roller a predetermined eX- tent, a stop to limit turningof the second gear by its spring, and a stop to limit backward turning`of said timing member.

41. In a machine of the character described, the combination with apaper-carrying frame movable into and out of position for presenting thepaper to be printed upon, 'a paper feeding roller mounted' in said frameand having a gear, and means for advancing said roller step by step withi'io provisions for disabling said means by movement of said frame outof printin position to permit backward turning o the roller; of a secondgear movable into and out of engagement with that on the 'paper-feedingroller, a spring applied to said second gear to resist its turning byadvance of the roller, a member adapted to turn with Said second gearand adjustable relatively thereto, means controlled by said member tosignalize advance of the roller a predetermined extent, a stop to limitturning of the second lgear by its spring, and a stop to limit backwardturning of said member.

42. In a machine of the character described, the combination of a rockinframe or cradle, a paper' feedroller carri therei, by and moved into andout of printing position by the rocking of said frame, said rollerhaving a gear, a support pivotally mounted on said frame, a gear carriedby Said Supportvand moved into and out of mesh with the gear on theroller by the Swingin of the su port, a spring resisting turning o thegears by the roller 1n advancing the paper, a

` stop to limit return movement of the second gear, and a member movablewith the latter and adjustable relatively thereto for variouslyvmeasuring advance movement 'of the roller.

43. In a machine of the character described, the combination of arocking frame or cradle, a paper Afeed roller carried thereby and movedinto and out of printing positlon by the rocking of said frame, saidroller having a gear, a support pivotally mounted on said frame, a gearcarried by said support and moved into and out of mesh with the gear onthe roller 'by the Swinging of the support, a spring resisting turningof the gears by the roller in advancing the paper, a stop to limitreturn movement of the second gear, a member movable with the latter andadjustable relatively thereto for variously measuring advance movementof the roller, and a camslotted linger piece pivoted on said support andengaging the rame'and spring-drawn in a direction to intermesh thegears.

44. In a machinev of the character described, thecombination of apaper-feeding roller, a gear wheel turned thereby and having an indexingmark, an indexing disk rotarily adjustable relatively to Said gear andadapted to be turned therewith, said diskI a flange with indexinggraduations.

havlng to reglster with Said mark on the gear, and means controlled bysaid disk for measuring the advance of the roller.

